Assembling-machine.



S. MUCCI.

ASSEMBLING MACHINE.

APPLICATION FILED Ame, 1913.

Patented Dec. 7, 1915.

6 $HEETS-SHEET I- 6 e J J n 7 w 1 W s. Mucm. ASSEMBLING MACHINE.

APPLICATION FILED APR.3. I913.

Patented Dec. 7, 1915.

6 SHEETS-SHEET 2.

.rEizcncE ints-.25..

Wz'in N w COLUMBIA PLANOORAPH CO..WASHINOTGN. I), c.

S. MUCCI.

ASSEMBLING MACHINE.

APPLICATION FILED APR.8. 1913.

1,163,255. Patented Dec. 7, 1915.

6 $HEETSSHEET 4- Q- 5 3 z 5 z 3 I83 0 O O O O O O 1 s23 Z7 2% Z 3/ 4! N 0 p $2 as 34 4 Z 7397 f ml msvzl/g 57g S. MUCCI.

ASS EMBLING MACHINE. APPLICATION FILED APR.B. 1913.

Patented 1m 7, 1915.

6 SHEETS-SHEET 5.

' ATTORNEY.

S. MUCCI.

ASSEM'BLING MACHINE.

APPLICATION FILED mm. 1913.

1,163,255. Patented De0.,7,1915.

6 SHEETS-SHEET 6.

Mag.

A TTORNE Y.

COLUMBIA PLANOURAPH 50., WASHINGTON. D, C.

SAVERIO MUCCI, or sYnAcUsn, new Yon-n.

AssE-r/rnLIne-Maoninn.

Specification of Letters Patent,

Patented nee. a, mile.

Apphcation fil ed April 8, 1913. Serial No. 759,667.

To all whom may oonccrn: Be it known that I, Savnnro MUooI, a subject of the King of Italy, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Assembling-Machines, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improve ments in machines for finishing and assembling the duplicating parts of typewriters and other machines requiring the assemblage of a multiplicity of parts, such as'girders, type bars, key levers and similar elements adapted to be used in bank in a single machine. Many of these parts and particularly in .typewriting machines are stamped from sheet metal and are generally provided with aseries 'of holes either stamped or drilled therein for receiving the connections by which they are mounted in the machine or attached to other elements thereof and, inasmuch as these holes must be properly sized to a predetermined gage to establish proper fit with such connections, it is in most instances necessary to carefully ream the holes to the proper gage. At present, this reaming operation isaccomplished'one hole at a time by holding the part to be reamed in the hand and passing the reamer through the hole which in many instances not only causes the elongation of such hole in one or more directions as aresult of the unsteady holding of the part being reamed but requires considerable time and labor to prepare and assemble the parts for a single machine.

The main object, therefore, of my present invention is to render the operation of fit- I ting and assembling these parts more accurate and expeditious so as to materially increase the output, durability and efliciency of the completed machinesand incidentally to reduce the cost of manufacture.- In other words,I have sought to produce a higher degree of uniformity in milling and assembling the duplicate or similar parts of a machine so that suclrassembled parts may be interchanged fromone machine to another with the assurance that they will fit accurately without special adjustment and will also operate with greater freedom and permanency of alinement.

Another object is toenable the machine to be applied to a wide range of uses, such as drilling, reaming, applying bolts and nuts,

and other operations where a reciprocatory motion isused in connection with a rotary motion. 1

A further object is to render the operation ofthe machine substantially automatic when once set in motion and, at the same time, to permit the reciprocatory mechanism to be adjusted to move difierent distances toward and from the tool holders.

A stillrfurther object is to enable the speed of movement of the reciprocating mechanism to be varied at will in either direction.

Other objects and uses will be brought out in the following description.

In the drawings-Figures l and 2 are respectively a top plan and side elevation of a machine embodying, the various features of my invention, F ig.-2 showing a portion of the legs in one end as broken away and the pedal and itssupports in section; Figs. 3 and are enlargedlongitudinal vertical sectional views taken respectively on lines 33 and. il-ed, Fig. 1. transverse vertical sectional view taken on line 5 5, Fig. 1. Fig. 6 is an enlarged horizontal sectional view taken on line 66, Fig. 4. Figs. 7 and 8 are respectively an enlarged transverse sectional view of the machine taken on line 77, Fig. 1 and a longitudinal vertical sectional view taken on line 8.8, Fig. 1. Fig. 9 is a horizontal sectional view similar to but in a plane below that shown in Fig. 6. Figs. 10 and 11 are enlarged detail sectional views taken respectively on'lines l0-10, Fig. 5, and 11-1l, Fig. 8. 'Fig. 12 is an enlarged detail sectional view taken'online 1212, Fig. 9. Fig. 13 is an enlarged detail vertical sectional view taken on line 13-13, Fig. 8. Fig. 14 is an enlargedhorizontal sectional view taken on line 14,l l,'Fig. 2. Fig. 15 is a horizontal sectional view taken on line 1515, Fig. 8. Fig. 16 is a transverse vertical sectional view through the upper por tion ofthe machine taken on line 16-16, Fig. 1. Fig. 17 is a-horizontal sectional view Fig. 5 is an enlarged through the upper portion'of the bed or frame of the machine taken on line l717,

, Fig. 2, except that the central portion thereof is broken away.

The various mechanisms forming the subject matter of this invention are mounted in or upon a main supporting frame or bed -A and comprise broadly a tool-holder, a reciprocatory work-holder movable toward and from the tool-holder, driving means for the tool-holder, automatic means for reciprocating the work-holder, suitable mechanisms adjustable voluntarily for varying the speed and degree of reciprocatorymovement of the work holder, and other devices for increasing the range of use and general efficiency of machines of this character.

TZ-7t0Zd@r.The tool-hold r may be used singly or in gangs according to the w rk required and in the present instance is employed for reaming or drilling or tapping a series of holes in the girder plates or similar parts of typewii'iting machines and consists of a series of revoluble toolholding chucks --l. which are journaled on parallelism in a suitable yoke 2 on the main frame A. and are connected for simultaneous rotation in the same direction by a train of gears -3- and a single driving spindle -fr secured coaxially to one of the gears.

The yoke -2 carrying the tool-chucks and constituting a part of the tool-holder is detachably mounted upon'the main supporting frame to permit the substitution of yokes having a different number or arrangements of chucks for the reception of the same or dififerent tools and for this purpose the yoke is arranged transversely of and above the top of the frame A and is supported at its ends between upright guides -5- having vertical slots "6* for receiving suitable adjusting and clamping screws 7- which are tapped into the ends of the yoke and serve the purpose of permitting the yoke to be adjusted vertically and of holding said yoke in its adjusted position. The slots 6 are preferably open at the top to permit the yoke to be easily and quickly withdrawn or replaced by simply loosening the clamping screws and retightening them. The slotted guides 5 together with the yoke 2 mounted thereon are adjustable transversely of the machine in il -shaped brackets 5+ which arerigidly secured to the top of the table A-, said guides being held in their adjusted position by clamping screws -7 on said brackets.

The tool-chucks 1 are shown as dis,- posed equi-distant apart in the same hori-. Zontal plane so as to protrude from the yoke toward the work-holder presently described and are connected by spindles through suitable bearings therefor in the yoke to their respective gears 3- which are located in close proximity to the opposite side of said yoke, the hubs of the chucks and gears being slightly larger than their connecting spindles to engage the adjacent faces of the yoke and hold said chucks against endwise movement.

The gears 3 are shown as of the same size for imparting the same speed of rotation to their respective chucks and tools carried thereby but it is evident that they may be of different sizes and arranged in other relations according to the nature of the work required without departing from the spirit of this invention.

The spindle l constitutes the direct driving means for the gears 3 but is adapted to be driven at will under variable speeds by a coaxial driving shaft -8 through the medium of a clutch'9, said shaft being provided with a cone pulley l0 whichmay be connected to any available source of power to drive the shaft con tinuously when the machine is in operation.

Theclutch 9 may be thrown into or out of action at will by means of a shiftlever 1l which is connected by link l2 to a suitable hand-lever -13 in the front side of the main supporting frame -A as shown more clearly in Figs; 3, 5 and 17.

In addition to the tool spindles or chucks 1, l have shown in Figs. '1 and 16, a pair of extra tool carrying spindles 14.

as journaled in suitable bearings 15 at opposite sides of and parallel with the driving shaft 8 for supporting nuts or simi-, lar elements which it may be desired to apply to certain parts as the clamping bolts for the girders previously referred to.

The bearings -15 aremounted on the upper ends of suitable screws 16- which rise from the top of the frame A and are adjustably secured thereto for the purpose of adjusting the bearings vertically as may be required for different classes of work, or these screws and bearings may be removed and replaced by others if necessary.

The spindles -14- are provided with cone pulleys -17 which are connected by belts 18 to similar cone pulleys 19 so as to drive the spindles at the same or different speeds in the same direction, the pulleys 19 being mounted on separate spindles 20 beneath the top of the frame where they are journaled in suitable'bearings depending from said top as shown more clearly in Figs. 1 and 16 and driven by a part of the carriage-operating mechanism hereinafter described.

War/ c holderreThe work-holder comprises a carriage -2lwhich is adapted to be reciprocated lengthwise of and above the top of the main frame -A- along and upon suitable track-rails 22 and guide rods 23 toward and from the tool holder and is equipped with a jig or frame 2ei and a clamping member 25- for receiving and holding the work in and upon the carriage while such work is being operated upon. I

The carriage -21 preferably comprises a pair of lengthwise parallel bars 26- and cross bars '27- rigidly connecting the sidebars and holding them in fixed relation a distance apart corresponding to the distance between the guide rails 2Q and guide bars +23-., said side bars being provided with lengthwise guide openings i-28 for receiving the rods 23 and allowing the carriage to slide freely thereon Each of the side bars -26 is provided on its underside with a pair of rollers 29 located near the ends thereof and in,

rolling engagement with the rails 22 to additionally support the carriage and give it greater freedom of movement. A straight toothed rack 30 is rigidlysecured to the underside of the cross bars 27 midway between and parallel with the side bars 26 and forms a partof the carriage to mesh with an underlying driving pinion .31 which forms a part of the carriage feeding mechanism hereinafter described. The cross bars 27 are also provided with pendant lugs -3Q forming a part of the carriage at one side of the toothed rack -30 and apertured for re ceiving an internally threaded sleeve 33 which extends lengthwise of the carriage and is engaged by a longitudinally extending screw-shaft 3 l for adjusting the.

screw relatively to the tool-holder independently of the feeding means as will be hereinafter more fully described the carriage being also provided with a longitudinally adjustable bar 35 secured to the underside of the cross bar -27 by clamping bolts -36- as shown in Figs. 7 and 8.

The guide rails 22 and rods 23 are arranged in parallelism with the axis of the tool holding chucks 1 at opposite sides of the longitudinal center'of the car riage so as to support said carriage in the plane of the tool-holder and cause it to move in exact parallelism with the axis of said chucks, said guide-rails androds being of suiiicient length to allow for a maximum endwise movement of the carriage in either direction. 1 Theguide rails and rods for the carriage are adjustable vertically to properlyaline the carriage and work therein with the toolholders and for thispurpose the ends of the rails E2"2 are supported by and between coacting pairs of adjusting screws -37- which are tapped respectively in the lower and upper sides of hollow supporting blocks --38 as shown in Fig. 4, the blocks for each rail being provided with vertically elongated open sides facing each other for receiving the adjacent ends of such rail and permitting the adjustment referred to. p The ends of the guide rods 23 are secured in the upper ends or heads of vertically adjustable screws 39-- which are passed through apertures in the top of the frame A and are held in their adjusted positionby clamping nuts 40.

lhejig 24 as shown is adapted to receive a complete set of girder plates for a typewriting machine for reaming the holes therein to a predetermined size in a single operation of the carriage by suitable reamers (not shown) whichare held by the toolchuclrs, it being understood that these reamers are sufiiciently long to pass through the entire set of girders. This jig may be constructed to receive and aline the usual spacing sleeves between the girder plates to permit the insertion of the usual tie-rods (not shown) by which the plates and sleeves are suitable bearings in the ends of a gear case t6' as best seen in Fig. i and is provided intermediate its ends with an axially sliding reversing clutch -l7 splined thereon and having its opposite ends formed with clutch faces for alternate engagement with coacting clutch faces on the adjacent ends of coaxial sleeves '-iS- which are loose on said. shaft so that by shifting the clutch t7- in one direction from its neutral po sition rotary motion will be imparted to one of the sleeves and when shifted in the re-"l verse directionreverse rotary motion will be lmpar'ted to the other sleeve as follows.

Secured to each of thesleeves i8' are separate sets of ears -t9, those of each set being of diiierent radii and adapted to be engaged at will by corresponding sets of separately movable gears '50 also of different radii and arranged to mesh with separate drum-pinions '--51 which are secured to reversely movlng coaxial shaft sections -52 as shown in Fig. 6, thereby pern1it-' ting the sleeves to be rotated one at a time in reverse directions and at dif erent speeds depending upon the gear 50 which is thrown into mesh with its corresponding gear l9 and drum pinion -5l.

The inner ends of the shaft sections 52- are journaled in a suitable hanger 53* while their outer ends are journaled in the sides of the gear case 46 and are pro vided with bevel gears 54* meshing with similar bevel gears 0n the adjacent ends of rearwardly extending rotary spiir dles -56- which are journaled in suitable bearings on the adjacent sides of the gear case and to which rotary motion is trans mitted from a lengthwise counter-shaft -57- through the medium of bevel gears 38,the latter being secured respectively to the spindles -56 and counter-shaft -57. in the sides of thegear-case l6- parallel with the main driving shaft 8 and is driven constantly by said main shaft through '62 of different size which may be connected by another belt (not shown) to a sprocket -63 on the counter shaft 57. The sprocket 60- is loose on the main shaft 57- but is provided with a clutch face adapted to be engaged by a coaxial sliding clutch -64- which is splined on said shaft for locking said sprocket thereto when shifted to its clutching position. This shifting of the clutch -6 lis effected by means of a lever 65 and a link 66 connecting said lever to a pedal lever -67 of the bell-crank type, said clutch being normally held out of action by a spring-operated sliding bolt or detent 68*, (Fig. 3) in holding engagement with a shoulder 69 on the link 66 against the action of a spring 70- which is connected to the lever (i5 and tends to force the clutch I into engagement with its sprocket -60 and to draw the link endwise.

The locking bolt or detent 68 may be withdrawn at will from its locking position against the action of a retracting spring 7l of a hand-lever -'72 which is fulcrumed on the main frame and extends through an opening in the front side thereof as shown in Figs. 2, 5 and 7 thereby allowing the spring to act in the manner described and causing the pedal end of the lever -67 to rise, whereupon the locking bolt -6S will be engaged with the top of the shoulder (i9-. The action of the carriage or work-holder is therefore de pendent upon the position of the clutch 64 and it is evident that while the clutch is engaged with the sprocket G0, and one of the gears 50 of each set is engaged with its corresponding gear 5) the carriage will continue to be reciprocated toward and from the tool holder to produce the desired operation of the tools upon the work but if it is desired to stop the feed of the carriage at any time, it is simply necessary to depress the pedal end of the lever 6'?, thereby shifting the link 66 to the right hand Fig. 3 against the action of the spring -7G and withdrawing the clutch until the locking bolt rides off from the face of the shoulder 69 and is forced into engagement with the side of said shoulder by the spring -71.

This counter-shaft is also journaled The gears 50 are mounted upon the inner ends of separately movable handlevers 75 which are pivoted at 75 and project through apertures in the front of the frame A as shown in Figs. 2 and 5, and may be elevated at will to bring the desired gear -50' of each set into mesh with its coacting gear l9 while the other gears 50 and levers 75 remain down in their normal idle positions.

When the machine is in action the clutch 47 is shifted automatically in reverse directions to automatically reverse the direction of movement of the carriage and for this purpose is provided with an upright shifting lever 76 fulcrumed intermediate its ends at 77 on the hanger 53- and having its upper end engaged with the clutch and the opposite sides of its lower end engaged by suitable contact members on separate horizontal levers 78- and ---79 as shown in Figs. 4, 5 and 9. The lower end of the clutch-shifting lever 76 also abuts against the adjacent 'end of a hori- Zontal sliding rod -80 having its other end spring pressed against a roller contact 81 on an upright lever 82, Figs. 8 and 9, said lever being fulcrumed at its lower end to a bracket 83 which is clamped to a stationary rod -84r having one end seated in one side of the gear case l6 and its other end secured to the lower end of a post 85 depending from the top of the frame A. I

The upper end of the lever 82- passes through an elongated slot in the top of the frame into the path of movement of an adjustable reversing stop 86 consisting of a screw which is adjustably mounted in a bracket 87-, the latter being clamped to the adjacent screw spindle 3el on the carriage so that, when the carriage approaches the limit of its movement away from the tool-holder, as shown in the drawings, the screw stop 86 will engage and rock the lever 2 in the same direction and thereby cause its roller 81 to engage and shift the rod 80 to the right against the action of its retracting spring 80- to engage and shift the clutch lever 76- for throwing its clutch 4-7 into a neutral position or out of engagement with both sleeves 48 as shown more clearly in Figs. 4 and 8 ready to be further shifted in the same direction after a greater or less interval or rest of the carriage in a manner presently described.

The object in allowing the carriage to rest after being returned to the extreme limit of movement from the toolholders is to afford ampletime for the removal of the work and the reinsertion of additional work into the jig or upon the carriage and for this purpose I have provided a slowly revolving disk 88 which,

positions so that their ends will project slightly beyond the periphery of the disk,

each abutment being held in its adjusted position by a separate locking bolt entering a corresponding aperture 91 in the disk as shown more clearly in Figs. 9 and 1.2. This disk -88" is secured to, an upright shaft 92 having its lower end j ournaled in the bottom of the gear case and its upper end j ournaled in the hanger 53 and provided with a worm gear 93- which meshes with a worm 94 on a longitudinally extending shaft 95- as shown more clearly in Figs. 1, Sand 6;

This shaft 95 is adapted to be driven at variable speeds from the shaft .57 and for this purpose, the latter shaft is provided with a sliding gear 96' splined thereon and adapted to be shifted by hand or otherwise into mesh with a gear 97 on the worm shaft 95 or it may be brought into mesh with one of a train of differential gears 98 for varying the speed of rotation of the worm shaft 95 and thereby varying the speed of movement of the governor disk 88.

The use of differential gears for varying speeds indifferent mechanism is well known and it is therefore believed to be unnecessary to enter into a detail description of the manner ofshifting these gears to produce the desired speed of rotation of the worm shaft 95 and governor disk 88 driven thereby. I

I have shown the disk as provided with a series, inthis instance, eight, of the adjustable abutments 89- spaced uniform distances apart circumferentially, one or more of which may be adjusted to its radial position for contact with a suitable abutment 79- on the lever 79, thereby permitting a. period of rest of the carriage in its extreme back position to be varied at will, it being understood that before the machine is started one of the abutments is adjusted by hand to produce the desired period of rest. For example, in Fig. 9, I have shown one of the abutments 89 as adjusted radially and as just about to engage and rock the lever 7 9 upon its pivot m or just after the carriage has been moved to its extreme back position, thereby causing the free end of the lever -79 to engage and shift the lower end of the clutch lever-76 to the right of its neutral position for throwing the clutch .-l7 into engagement with the left hand lever -48. Fig. l, andmoving the carriage forward through the medium of l the worm and gear -44 and rackand pinion 30 and 81. This shifting of the clutch lever 76 and its clutch 7- causes the lower end of clutch lever to engage and rock the lever 78 from its normal position, thereby throwing its contactroller, as 78" to the left, Fig. 9, where it is adapted to be engaged by a vertically movable cam 100 as best seen in Figs; 8, 10 and 11, forshifting the lever in the opposite direction when the carriage reaches the limit of its forward movement toward the tool-holders as follows: The cam 10() is secured to a vertically movable toothed rack 101- which is guided ina stationary frame --102 risingfrom and secured to the bottom of the gearcase, said rack being secured to a vertically movable frame'-l03- having the lower end of one side provided with a recess 1Ql for receiving a detent -105- on the upper end of a lever 106 as shown in Fig. 10, said lever being fulcrumed intermediate its ends at -107 upon the post or bracket -102 and is provided with a pendant extension +108 adapted tobe engaged by the adjacent end of a longitudinally movable rod -109 the latter being guided in a lengthwise key-way in one side of the stationary rod 84-, Figs. 2, 6, 9 and 14. The opposite end of this sliding rod-109issecured to a collar 110,' which is splinedon'the adjacentend ofthe stationary rod -84 and is provided with a roller 111 adapted to be engaged by a verticallyinclined cam 112 on the lower end of a vertically movable rod 1l. This vertically movable rod is guided in an upright tubular post -1 14 as shown more clearly in Figs. 8 and 13, andis provided at its upper end with a roller bearing 115, the latter being adapted to be engaged by a co actingv roller -1l6-'- on the forward end of the threaded spindle 3-l as shown more clearly in Fig. 8 so that, as the carriage reaches the limit of its forward movement toward the tool-holder, the roller --116-- will engage the roller 115- and depress the rod. l13 against the action of a retracting spring 117 thereby forcing the cam.112- into engagement with the roller 11l' to move the sliding rod 109 endwise or to the right, Fig 9, into engagement with an extension.108 of the lever +106. This operation of the lever 106 releases the detent -105 from holding engagement with the back of the toothed rack 101 and allows the cam -100 to be drawn downwardly with considerable force by means of spring l18-' and, as shown more clearly in Figs. 8 and 11, said cam operating on the roller -78 of the lever -78 to rock the inner end thereof against the lower end of the clutch lever lee Fig. 4:, for returning the carriage to its starting position away from the tool-holder. The function of the rod 109-, therefore, is to trip the detent lever 106s when the carriage reaches the limit of its forward movement and to thereby allow the cam 100 to descend along its guide post 102 for engaging and shifting the lever 78*- which in turn operates the clutch levver 6 to throw the clutch into engagement with the right hand sleeve L8", thus returning the carriage to its starting position. This shifting of the clutch lever also forces the lever -79- into position to cause its abutment 98 to be engaged by the adjusted abutment -89 on the governor disk 88- and it is evident that, if any one of the successive abutments is adjusted for cooperation with the lever 79, the period of rest of the carriage in its extreme back position will be increased for the purpose previously mentioned.

The cam 10() is adapted to be returned to its normal up-position in holding engagement with the detent 106 by means of a rocking toothed segment 12() journaled within the gear case and extending through the top thereof where it is provided with a roller -121 adapted to be engaged by a co-acting roller -l22- on the carriage as the latter returns to its starting position, it being understood that when the cam 100 is released and is forced downwardly, the upper end of the toothed lever 12() is forced upwardly into the path of movement of the returning roller 122- which forces and rocks the lower end of the segments downwardly and thereby elevates, the cam to i s up-position where it is held by the detent-106.

lhe operation briefly described is as follows: Assuming that the clutches -9 and -6 tare in their inoperative positions and that the carriage is in its extreme back position and that the work-holder has been placed in the on the carriage for drilling or reaming holes in the work by the reaming or drilling tools (not shown), then the first operation is to throw the clutch 9- into action by means of the lever -13: for rotating the drillingor reaming spindles after which the clutch 64t may be thrown into action by the operation of the lever 7Z which withdraws the locking bolt -68 and allows the spring 70 to act upon the clutch-operating lever 65 Now, as soon the active abutment 89 on the governor disk 8S engages and operates the lever 79, the latter will engage and operate the clutch lever 76 to hold the clutch i7 into engagement with the left hand sleeve -48- to operate the carriage forwardly through the medium of the gears and 50-.-, one of the gears -50 having been thrown into mesh with its corresponding gear 49 by means of its hand lever thus driving the worm i-1 and its gear -l3 and transmitting forward movement of the carriage by means of the rack and pinion -30 and 31 The carriage will now continue its forward movement to cause the drills or reamers to operate upon the work until the roller on the forward end of the threaded spindle 8fi" engages and depresses the plunger 113 whereupon the cam -112- on the lower end of said plunger will engage the roller 111 and shift the rod 109 to the right, Fig. 9, whereby tripping the detent 106- and allowing the cam 100*-- to descend and shift the lever '-Z8 which in turn operates the clutch lever 76 to withdraw the clutch 4:7 from engagement with the left hand sleeve, Fig. l, and to force it into engagement with the right hand sleeve for returning the carriage toward its starting position.

As the carriage approaches the limit of its return movement, its abutment S6 will engage and operate the lever 82 to shift the rod endwise, thereby shifting the clutch lever 76- and its clutch l-7 to their. neutral positions and stopping the carriage until re-started on its forward movement by the reengagement of the active abutment 89 with the lever 79 in the manner previously described, it being understood that'the time of stopping the carriage may be varied by the adjustment of the screw stop 86 and that the degree of forwardmovement of the carriage may also be varied by the adjustment of the screw spindle What I claim is:

1. In a machine of the character described, a main frame, a yoke mounted upon the frame, tool-holding spindles journaled on the yoke and means for adjusting the yoke transversely of the axes of the spindles gear connections between the several spindles forrotating them simultaneously, means for driving one of the pinions, guides on the frame parallel with the axes of the toolholding spindles, a carriage movable along the guides toward and from the tool-holding spindles, and means on the carriage for holding a series of articles in axial alinement' with the tools of the spindles.

2. In a machine of the character described, a tool-holder, a work-supporting carriage movable toward and from the toolholder, a driving shaft, means having clutch connection with the driving shaft for reciprocating the carriage, said means including separate devices operable at will for varying the-speed. of movement of the carriage in one direction, and additional means also operable at will for varying the speed of movement of-the carriage in the opposite direction. I

3. In a machine", of the character described, a mam supporting-frame, a toolholder mounted thereon, a work-supporting carriage movable lengthwise of andupon the frame toward and from the tool-holder, a driving shaft, means having clutch connec tion with the driving shaft for reciprocating the carriage, said means includingseparate sets of gears for moving the carriage in reverse directions, one gear of each set being movable at will into and out of engagement with its corresponding set.

l. In a machine of the character described, a main supporting frame, a toolholder mounted on the frame, a worlesupporting carriage movable lengthwise of and upon the frame toward and from the Work holder, a driving shaft, means driven by said shaft for reciprocating the carriage and ineluding separate sets of gears, one set for moving the carriage toward the work holder and the other set for moving the carriage 1n the opposite direction, one of the gears of each set being movable at will into and out of engagement with its companion gears.

5. In a machine of the class described, a tool-holder, a workholder movable toward and from the tool holder, means for feeding the work-holder to and from the tool-holder including means for varying the period of rest of the work-holder when returned to its extreme starting position away from the tool-holder.

6. In a machine of the character described, a tool-holder, a work-holder movable toward and from the tool-holder, and mechanism for reciprocating the workholder including means for automatically stopping the work-holder at the limit of its return movement, and additional means for starting the work-holder on its return movement after a predetermined interval of rest. i

7. In a machine of the character described, a tool-holder, a carriage movable toward and from the tool-holder, means for reciprocating the carriage including reversely rotating members, a clutch movable alternately into and out of alternate connection with said members, and means operated by the return movement of the carriage for throwing the clutch to a neutral position out of engagement with both of said members.

8. In a machine of the character de scribed, a tool-holder, a carriage movable toward and from the tool-holder, means for reciprocating the carriage including reversely rotating members, a clutch movable alternately into and out of alternate connection with said members, and means operated by the return movement of the carriagefor throwing the clutch to a neutral position out of engagement with both of said members, and further means for automatically shift ing the clutch into engagement with the I clutch-operating devices, means actuated by one of said devices for throwing the clutch into operative engagement with one of the sleeves for rotating said shaft in one, directionto feed the carriage forwardly toward the tool-holder, connections between said shaft and carriage for feeding the same in both directions, separate means operated by the carriage when approaching the limit of its forward movement for reversing the clutch-operating means and throwing the clutchinto engagement with the other sleeve for reversing the direction of movement of the carriage, and additional means for antomatically stopping the carriage when it reaches the limit of its backward movement.

10. In a machine of the character de-' scribed,a tool-holder,-a carriage for supporting the work movable toward and from the tool-holder, a rotary shaft, means for transmitting motion from the shaft to the carriage, additional means including separate sets of gears for rotating the shaft in reverse directions and thereby moving the carriage in opposite directions, one of the gears of each set being operable at will into and out of its active position.

11. In a machine of the character de scribed, a tool-holder, a carriage for the work movable toward and from the toolholder, a rotary shaft, means for transmitting motion fromthe shaft to the carriage, reversely rotatable sleeves on the shaft, a clutch splined on the shaft and movable alternately into and out of engagement with said sleeves for locking and releasing them i to and from the shaft, an additional shaft rotating continuously in one direction, separate connections between said additional shaft and sleeves for rotating the latter in reverse directions, means actuated by the forward movement of the carriage when the clutch is engaged with one sleeve for shifting said clutch into engagement with the other sleeve to return the carriage, and additional means actuated by the return of the carriage for shifting the clutch to a neutral position out of engagement with both sleeves.

12.111 a machine of the character described, a tool-holder, a carriage for the work movable toward and from the toolholder, a rotary shaft, means for transmit' ting motion from the shaft to the carriage,

reversely rotatable sleeves on the shaft, a clutch splincd on the shaft and movable alternately into and out of engagement with said sleeves for looking and releasing them to and from the shaft, an additional shaft rotating continuously in one direction, sepa-, rate connections between said additional shaft and sleeves for rotating the latter in reverse directions, means actuated by the forward movement of the carriage When the clutch is engaged With one sleeve for shifting said clutch into engagement With the other sleeve to return the carriage, additional means actuated by the return of the carriage for shifting the clutch to a neutral 15 position out of engagement with both sleeves, and voluntarily operated means for breaking the connections between the first named shaft and additional shaft.

In Witness whereof I have hereunto set 20 my hand this 31st day of March 1913.

SAVERIO MUCCI.

Witnesses H. E. CHAsE, EVA E. GREENLEAF.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

